![A man rides a horse through an area green with shrubs and cactuses. Behind him are small buildings at the foot of a steep mountain ridge.](https://media.audubon.org/web_au1121_bp_030.jpg?width=233&height=200&auto=webp&quality=10&fit=crop&disable=upscale&enable=upscale&blur=100)
The Grand Dream of an International Park With Mexico Meets a Complicated Reality
December 20, 2021 —
Much has changed since F.D.R. called for a great transboundary conservation area spanning the Rio Grande, but the vision lives on. Is it an idea whose time has come—or come and gone?