mcsew2k Posted October 2, 2018 Share Posted October 2, 2018 I have been looking for several benchmarks on a 1915 USGS topo map. For example, on the Searles Lake, CA map it indicates BM 2707 with an "X" near a dirt road. My question is, how accurate is the elevation? Can I look along the 2700 elevation line on a modern topo map and expect to find the benchmark nearby? Any other tips on how to find it? Quote Link to comment
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.