By the numbers: most/less crowded national parks
Counting Visits
The National Park Service makes available a lot of visitor use statistics. Of all of them, the list of national parks ranked by the annual number of recreation visits is the one that has captured the attention of media and bloggers. While it is only a measure of popularity, it has been used to determine the “top” (best) national parks, and more relevant to this article, the more and less crowded national parks.The numbers for the top and bottom 15 are tabulated below (full data) with the twist that instead of using only last year’s figures like everybody else, I have instead used the average over the last ten years (like I did in Treasured Lands). I am more interested in statistics of lasting value as opposed to snapshots in time, and the average is more immune to variations caused by exceptional events such as the summer of 2017 wildfires in Yosemite National Park that caused visitation to drop from a 5,028,868 high in 2016 to 4,336,890 in 2017, while most other parks saw their visitation continue to increase.
Visits
Rank
Great Smoky Mountains
9,951,197
1
Grand Canyon
4,894,769
2
Yosemite
3,996,500
3
Yellowstone
3,601,693
4
Rocky Mountain
3,447,870
5
Zion
3,233,651
6
Olympic
3,137,907
7
Grand Teton
2,824,532
8
Acadia
2,605,536
9
Cuyahoga Valley
2,359,884
10
Glacier
2,320,217
11
Gateway Arch
2,006,982
12
Joshua Tree
1,728,215
13
Hawaii Volcanoes
1,565,752
14
Bryce Canyon
1,565,676
15
…
Kenai Fjords
291,727
45
Pinnacles
229,210
46
Voyageurs
227,996
47
Black Canyon of the Gunnison
198,211
48
Guadalupe Mountains
175,588
49
Congaree
121,036
50
Great Basin
105,880
51
Wrangell St Elias
72,362
52
Dry Tortugas
62,764
53
Katmai
36,825
54
North Cascades
24,164
55
Isle Royale
17,972
56
American Samoa
17,321
57
Lake Clark
13,402
58
Kobuk Valley
11,939
59
Gates of the Arctic
11,038
60
Great Smoky Mountains National Parks consistently ranks number one in visitation by a large margin, but is it really the most crowded park? No matter which numbers you use, amongst the less crowded, you should expect to find the Alaskan parks, which are remote, vast, and not developped. In the continental U.S., you should find the backcountry parks Isle Royale National Park, which has no road access and no roads, and North Cascades National Park, which except for a short unpaved road is explored by steep trails. Channel Islands National Park shares Isle Royale National Park’s characteristics, but the visitation numbers are very skewed by their inclusion of the visitor center, which is located mainland, whereas only one in ten of visitors make it to the islands themselves.
For some of the other national parks, the number of visits doesn’t always correlate with my memories of how crowded the park was. To take the example of two parks very similar in terrain and access – paved roads only cover a small portion of each, Canyonlands National Park receives 579,000 visits and Capitol Reef National Park receives 783,000 visits. Yet Capitol Reef National Park always felt less crowded than Canyonlands National Park. Note also how parks such as Dry Tortugas, and Great Basin are in the bottom ten, below some Alaskan parks.
Counting Hours
The National Park Service offers other statistics than the number of recreation visits, which is the default option. They are seldom mentioned, but for our purpose one of them is more useful: the number of recreation hours. If two visitors spend respectively 1 hour and 10 hours in a park, you are 10 times more likely to run into the second one. Visits for both are 1, but recreation hours counts differentiate them. To continue with the previous example, Canyonlands National Park receives 4.3 million recreation hours (average 0.83 day per visit) while Capitol Reef National Park receives 1.3 million recreation hours (average 0.18 day per visit), because the configuration of the park is conductive of a quick drive to the end of the short scenic road and back.The average recreation hours of the last ten years for the top and bottom 15 are tabulated in the two last columns, with the numbers for visits in the first two columns for comparison in the table below.
visits
visits
rankhours
hours
rank
Grand Canyon
4,894,769
2
77,132,187
1
Yellowstone
3,601,693
4
75,042,496
2
Great Smoky Mountains
9,951,197
1
73,751,865
3
Yosemite
3,996,500
3
69,060,263
4
Sequoia
1,060,315
21
34,300,080
5
Glacier
2,320,217
11
27,089,324
6
Rocky Mountain
3,447,870
5
23,853,991
7
Zion
3,233,651
6
22,409,146
8
Grand Teton
2,824,532
8
19,163,408
9
Kings Canyon
577,854
29
18,852,981
10
Olympic
3,137,907
7
15,067,414
11
Acadia
2,605,536
9
14,506,845
12
Mount Rainier
1,201,686
18
14,397,328
13
Joshua Tree
1,728,215
13
12,475,720
14
Bryce Canyon
1,565,676
15
10,266,170
15
…
Capitol Reef
783,314
25
1,275,862
45
Black Canyon of the Gunnison
198,211
48
1,168,051
46
Great Basin
105,880
51
1,161,639
47
Isle Royale
17,972
56
1,151,455
48
Saguaro
721,678
26
1,034,186
49
Pinnacles
229,210
46
912,448
50
Kenai Fjords
291,727
45
903,085
51
Dry Tortugas
62,764
53
733,466
52
Congaree
121,036
50
469,065
53
North Cascades
24,164
55
468,323
54
Guadalupe Mountains
175,588
49
454,766
55
Katmai
36,825
54
284,277
56
Gates of the Arctic
11,038
60
168,313
57
Lake Clark
13,402
58
106,848
58
American Samoa
17,321
57
34,642
59
Kobuk Valley
11,939
59
34,472
60
This is a move in the right direction, but note that Gateway Arch, which feels crowded like a city park, because it is one, is not even in the top 15, whereas the Alaskan and backcountry parks are still not consistently at the bottom. Wondering why despite comparable number of visits, people spend so much more time in Gates of the Arctic National Park than in Kobuk Valley National Park? Quite a few treat the former as the ultimate backpacking destination it is, while most visitors to the latter just fly to the dunes for a quick stroll.
The Crowd Factor: Hours per square mile
While recreation hours are a better indicator of crowds than recreation visits, they don’t take into account the size of the park, which is crucial because everything else being equal, if people are spread into a larger area, the place is less crowded. To continue in the Moab area, Arches National Park receives 4.6 million recreation hours, about the same as the 4.3 million of Canyonlands, yet everybody who has been to both will agree that Arches is more crowded. This is simply because Arches National Park streches 120 square miles, whereas Canyonlands National Park stretches 527 square miles, a surface area more than 4 times larger that dilutes the crowds.As a “crowd factor”, I propose to use the ratio of the number of recreation hours divided by the park’s surface area. In addition, if we normalize that number by dividing it by 365 (number of days of the year) and by 12 (number of hours in a day as accounted by the NPS), we get a number that roughly indicates how many people one is going to find on a square mile of park at any hour. The resulting data is below, with the crowd factor in the last two columns:
Area
Visits
Hours
Hours
RankCrowd
FactorCrowd
RankGateway Arch
0.14
2,006,982
8,027,927
19
13100
1
Hot Springs
9
1,380,780
2,921,406
33
74
2
Acadia
74
2,605,536
14,506,845
12
45
3
Bryce Canyon
56
1,565,676
10,266,170
15
42
4
Cuyahoga Valley
51
2,359,884
6,879,998
22
31
5
Virgin Islands
23
432,377
2,659,118
36
26
6
Zion
229
3,233,651
22,409,146
8
22
7
Great Smoky Mountains
815
9,951,197
73,751,865
3
21
8
Haleakala
45
1,097,150
2,767,447
35
14
9
Yosemite
1,189
3,996,500
69,060,263
4
13
10
Rocky Mountain
415
3,447,870
23,853,991
7
13
11
Sequoia
631
1,060,315
34,300,080
5
12
12
Mesa Verde
81
542,916
3,838,543
28
11
13
Grand Canyon
1,902
4,894,769
77,132,187
1
9.3
14
Grand Teton
484
2,824,532
19,163,408
9
9
15
…
Voyageurs
341
227,996
1,897,482
38
1.3
45
Capitol Reef
284
783,314
1,275,862
45
1
46
Guadalupe Mountains
135
175,588
454,766
55
0.77
47
American Samoa
14
17,321
34,642
59
0.56
48
Everglades
2,357
989,970
3,642,777
29
0.35
49
Death Valley
5,269
1,041,596
7,861,951
20
0.34
50
Isle Royale
893
17,972
1,151,455
48
0.29
51
Glacier Bay
5,039
480,802
6,175,456
23
0.28
52
Denali
7,408
481,744
6,977,855
21
0.22
53
Kenai Fjords
1,047
291,727
903,085
51
0.2
54
North Cascades
789
24,164
468,323
54
0.14
55
Wrangell St Elias
13,005
72,362
3,328,672
31
0.06
56
Katmai
5,741
36,825
284,277
56
0.01
57
Lake Clark
4,093
13,402
106,848
58
0.006
58
Gates of the Arctic
11,756
11,038
168,313
57
0.003
59
Kobuk Valley
2,735
11,939
34472
60
0.003
60
Using the crowd factor defined above produces drastic changes in rank. It is now clear that Gateway Arch and Hot Springs, by virtue of their tiny size and sizeable visitation are the most crowded parks, the former one by a whopping margin. The small Acadia, Bryce Canyon, Cuyahoga Valley, and Virgin Islands come next, and this is consistent with my experience. Amongst the sizeable parks (more than 100 square miles), Zion is the most crowded, while Yosemite is the most crowded of the large parks (more than 1,000 square miles). The Alaskan and backcountry parks are now all at the bottom, and the list confirms the opportunities for solitude at Death Valley. There is quite a bit to be learned from the NPS statistics, and this post has given you an idea of what can be done with their considered use. It has focused on the top and bottom 15, but the full data can be found on my parks data resource. Do you have any suggestions to improve this methodology?